<h2>Why is this an issue?</h2>
<p>Having default value for optional boolean parameters makes the logic of function when missing that parameter more evident. When providing a default
value is not possible, it is better to split the function into two with a clear responsibility separation.</p>
<h3>Noncompliant code example</h3>
<pre>
function countPositiveNumbers(arr: number[], countZero?: boolean) { // Noncompliant, default value for 'countZero' should be defined
  // ...
}

function toggleProperty(property: string, value?: boolean) { // Noncompliant, a new function should be defined
  if (value !== undefined) {
    setProperty(property, value);
  } else {
    setProperty(property, calculateProperty());
  }
}
</pre>
<h3>Compliant solution</h3>
<pre>
function countPositiveNumbers(arr: number[], countZero = false) {
  // ...
}

function toggleProperty(property: string, value: boolean) {
  setProperty(property, value);
}

function togglePropertyToCalculatedValue(property: string) {
  setProperty(property, calculateProperty());
}
</pre>
